What are the vertex and x-intercepts of the graph of the function given below?
y = x2 - 2x - 24

a. vertex: (7, 5); intercepts: x = 6, 8
b. vertex: (-1, -21); intercepts: x = 6, 4
c. vertex: (0, 0); intercepts: x = -4, 6
d. vertex: (1, -25); intercepts: x = 6, -4

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500